OCT parameters | Non-dilated LV | Dilated LV | p-value |
---|---|---|---|
 | n = 59 | n = 22 |  |
Stenosis (%) | 73.97 ± 10.62 | 75.45 ± 9.33 | NS |
Stenosis length | 6.56 ± 4.52 | 8.58 ± 6.56 | NS |
Mean reference area (mm²) | 6.38 ± 2.09 | 6.41 ± 2.22 | NS |
Minimal luminal diameter(mm) | 1.22 ± 0.33 | 1.17 ± 0.21 | NS |
Eccentricity lumen index (%) | 23.08 ± 10.24 | 24.77 ± 12.50 | NS |
Minimal luminal area (mm²) | 1.62 ± 0.88 | 1.49 ± 0.54 | NS |
Lipid plaque (n, %) | 31 (52.5) | 14 (63.6) | NS |
   FCT≤80 μm (n, %) | 11 (35.5) | 10 (71.4) | 0.025 |
   Minimum FCT (μm) | 88.52 ± 22.75 | 68.02 ± 21.76 | 0.008 |
   Mean FCT (μm) | 139.98 ± 28.41 | 116.44 ± 23.54 | 0.010 |
   Lipid arc ( ° ) | 129.26 ± 40.53 | 142.05 ± 39.67 | NS |
   Lipid plaque length (mm) | 4.00 ± 2.29 | 4.40 ± 2.28 | NS |
Calcium plaque (n, %) | 42 (71.2) | 12 (54.5) | NS |
Fibrous plaque (n, %) | 47 (79.7) | 16 (72.7) | NS |
Plaque rupture (n, %) | 5 (8.5) | 5 (22.7) | 0.083 |
Thrombus (n, %) | 3 (5.1) | 2 (9.1) | NS |